1.exhausting whitening process:
BA: 0.05-0.3% (o.w.f.), bath ratio: 1:5-30, dyeing temperature: 40°C -100°C;
Na2SO4:0-10g/l.,start temperature :30°C , heating rate:1-2°C /min, keep the
temperature at 50-100°C for 20-40min, then lower to 50-30°C --> wash-->
dry( 100°C ) --> setting (120°C -150°C )×1-2 min( add proper amount leveling agent according to the leveling effect).
2. Padding Process:
BA:0.5-3g/l, residue liquor ratio:100%, one dip and nip --> dry( 100°C )
-->setting (120°C -150°C )×1-2 min
|